The Doctor takes Clara and Rigsy to the map room in the library to find old maps.
The Doctor, Clara, and Rigsy look at the map and split up to search for the trap street.
Source: The Doctor Who Locations Guide
Rigsy walks around a corner and searches a wall.
Clara searches around some shops for the trap street.
The Doctor talks to a small child while searching for the hidden street.
Clara notices she loses count while walking in front of a cafe.